Bai 1 : Viet tap hop A cac so tu nhien lon hon 4 va ko vuot qua 7 bang hai cach .
a ) Viet tap hop cac so tu nhien khac 0 va ko vuot qua 12 bang hai cach .
b ) Viet tap hop M cac so tu nhien lon hon hoac bang 11 va ko vuot qua 20 bang hai cach .
c ) Viet tap hop M cac so tu nhien lon hon 9 ,nho hon hoac bang 15 bang 2 cach .
d ) Viet tap hop A cac so tu nhien ko vuot qua 30 bang 2 cach .
e ) Viet tap hop B cac so tu nhien lon hon 5 bang 2 cach .
f ) Viet tap hop C cac so tu nhien lon hon hoac bang 18 va ko vuot qua 100 bang 2 cach .
Ai lam nhanh minh se tick cho nha ,minh can gap .
so cac so tu nhien ko vuot qua 78 la
so phan tu tap hop cac so tu nhien le lon hon1001 ko vuot qua 2009
so phan tu cua tap hop cac so tu nhien chan lon hon 100 nhung ko vuot qua 2010 la
e, E tap hop va so tu nhien le khong vuot qua 30
f, F tap hop cac so tu nhien chan khong vuot qua 30
g, G tap hop cac so tu nhien lon hon 30
h, H tap hop cac so tu nhien lon hon 30 nho hon 31
k, K tap hop cac so tu nhien chia cho 3 du 1 lon hon 20 nhung nho hon 100
de ghi duoc cac so tu nhien ko vuot qua 4796 ta phai dung bao nhieu chu so
viet tap hop cac so tu nhien lon hon 13 va ko vuot qua 21 bang 2 cach
so cac so tu nhien khong vuot qua 78
so phan tu cua tap hop cac so tu nhien khong vuot qua 2010 la